Pattern series
Double-Entry Ledger
3 System Design questions share this exact tag. Use the closely related series below for a fuller drill.
- 01Preview
Payment System
Design a payment system for an e-commerce product — money must move correctly between buyer, platform, and seller even when networks fail mid-transact...
Stripe - 02Preview
Robinhood (Stock Trading)
Design a retail stock trading platform like Robinhood that lets millions of users place buy/sell orders, tracks cash and positions with regulatory-gra...
Robinhood - 03Preview
Stripe
Design Stripe itself — a payments platform that other companies build on top of, exposing charge/webhook APIs to thousands of merchants while routing...
Stripe